1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Driver for the 1250-EV1 audio I/O module
15 #include <sound/soc-dapm.h>
28 	struct wm1250_priv *wm1250 = dev_get_drvdata(component->dev);  in wm1250_ev1_set_bias_level()
38 		gpiod_set_value_cansleep(wm1250->clk_ena, 1);  in wm1250_ev1_set_bias_level()
42 		gpiod_set_value_cansleep(wm1250->clk_ena, 0);  in wm1250_ev1_set_bias_level()
50 SND_SOC_DAPM_ADC("ADC", "wm1250-ev1 Capture", SND_SOC_NOPM, 0, 0),
51 SND_SOC_DAPM_DAC("DAC", "wm1250-ev1 Playback", SND_SOC_NOPM, 0, 0),
66 	struct wm1250_priv *wm1250 = snd_soc_component_get_drvdata(dai->component);  in wm1250_ev1_hw_params()
70 		gpiod_set_value(wm1250->clk_sel0, 1);  in wm1250_ev1_hw_params()
71 		gpiod_set_value(wm1250->clk_sel1, 1);  in wm1250_ev1_hw_params()
74 		gpiod_set_value(wm1250->clk_sel0, 0);  in wm1250_ev1_hw_params()
75 		gpiod_set_value(wm1250->clk_sel1, 1);  in wm1250_ev1_hw_params()
78 		gpiod_set_value(wm1250->clk_sel0, 1);  in wm1250_ev1_hw_params()
79 		gpiod_set_value(wm1250->clk_sel1, 0);  in wm1250_ev1_hw_params()
82 		gpiod_set_value(wm1250->clk_sel0, 0);  in wm1250_ev1_hw_params()
83 		gpiod_set_value(wm1250->clk_sel1, 0);  in wm1250_ev1_hw_params()
86 		return -EINVAL;  in wm1250_ev1_hw_params()
100 	.name = "wm1250-ev1",
130 	struct wm1250_ev1_pdata *pdata = dev_get_platdata(&i2c->dev);  in wm1250_ev1_pdata()
136 	wm1250 = devm_kzalloc(&i2c->dev, sizeof(*wm1250), GFP_KERNEL);  in wm1250_ev1_pdata()
138 		return -ENOMEM;  in wm1250_ev1_pdata()
140 	wm1250->clk_ena = devm_gpiod_get(&i2c->dev, "clk-ena", GPIOD_OUT_LOW);  in wm1250_ev1_pdata()
141 	if (IS_ERR(wm1250->clk_ena))  in wm1250_ev1_pdata()
142 		return dev_err_probe(&i2c->dev, PTR_ERR(wm1250->clk_ena),  in wm1250_ev1_pdata()
145 	wm1250->clk_sel0 = devm_gpiod_get(&i2c->dev, "clk-sel0", GPIOD_OUT_HIGH);  in wm1250_ev1_pdata()
146 	if (IS_ERR(wm1250->clk_sel0))  in wm1250_ev1_pdata()
147 		return dev_err_probe(&i2c->dev, PTR_ERR(wm1250->clk_sel0),  in wm1250_ev1_pdata()
150 	wm1250->clk_sel1 = devm_gpiod_get(&i2c->dev, "clk-sel1", GPIOD_OUT_HIGH);  in wm1250_ev1_pdata()
151 	if (IS_ERR(wm1250->clk_sel1))  in wm1250_ev1_pdata()
152 		return dev_err_probe(&i2c->dev, PTR_ERR(wm1250->clk_sel1),  in wm1250_ev1_pdata()
155 	wm1250->osr = devm_gpiod_get(&i2c->dev, "osr", GPIOD_OUT_LOW);  in wm1250_ev1_pdata()
156 	if (IS_ERR(wm1250->osr))  in wm1250_ev1_pdata()
157 		return dev_err_probe(&i2c->dev, PTR_ERR(wm1250->osr),  in wm1250_ev1_pdata()
160 	wm1250->master = devm_gpiod_get(&i2c->dev, "master", GPIOD_OUT_LOW);  in wm1250_ev1_pdata()
161 	if (IS_ERR(wm1250->master))  in wm1250_ev1_pdata()
162 		return dev_err_probe(&i2c->dev, PTR_ERR(wm1250->master),  in wm1250_ev1_pdata()
165 	dev_set_drvdata(&i2c->dev, wm1250);  in wm1250_ev1_pdata()
172 	int id, board, rev, ret;  in wm1250_ev1_probe()  local
174 	dev_set_drvdata(&i2c->dev, NULL);  in wm1250_ev1_probe()
176 	board = i2c_smbus_read_byte_data(i2c, 0);  in wm1250_ev1_probe()
177 	if (board < 0) {  in wm1250_ev1_probe()
178 		dev_err(&i2c->dev, "Failed to read ID: %d\n", board);  in wm1250_ev1_probe()
179 		return board;  in wm1250_ev1_probe()
182 	id = (board & 0xfe) >> 2;  in wm1250_ev1_probe()
183 	rev = board & 0x3;  in wm1250_ev1_probe()
185 	if (id != 1) {  in wm1250_ev1_probe()
186 		dev_err(&i2c->dev, "Unknown board ID %d\n", id);  in wm1250_ev1_probe()
187 		return -ENODEV;  in wm1250_ev1_probe()
190 	dev_info(&i2c->dev, "revision %d\n", rev + 1);  in wm1250_ev1_probe()
196 	ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_wm1250_ev1,  in wm1250_ev1_probe()
199 		dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);  in wm1250_ev1_probe()
207 	{ "wm1250-ev1" },
214 		.name = "wm1250-ev1",
223 MODULE_DESCRIPTION("WM1250-EV1 audio I/O module driver");